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Title: Chromatograph Maintenance And Troubleshooting
Author: Michael Gaura
Source: 2011 International School of Hydrocarbon Measurement
Year Published: 2011
Abstract: Natural Gas is sold as Energy. Gas Chromatographs calculate the Energy value of the Gas (as well as other calculated values used in the Flow Calculation). When there is only a single Gas Chromatograph (GC) on a Custody Metering station, the downtime for a GC must not only be at a minimum but it should be planned ahead of time, rather than occurring only when a failure has occurred. To allow for predictive maintenance an appropriate maintenance program should be instituted so that analysis problems are identified before they cause measurement errors. Thus maintenance can be performed on a predictive basis, rather than on an ad-hoc or breakdown basis. This paper will describe the routine maintenance that should be performed on a Gas Chromatograph System, the predictive diagnostics steps that should be used, and finally outline the steps taken to perform an overhaul of the analysis system.

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